What is the clinical evidence from this study?

Study design: Case Report. Population: Meningococcal pericarditis with cardiac tamponade (n=1). Intervention: Emergent subxiphoid tube pericardiostomy. Primary outcome: Hemodynamic stabilization.

What does this research mean for the field?

Immune complex-mediated meningococcal pericarditis can rapidly progress to life-threatening cardiac tamponade even as systemic infection markers improve, requiring emergent pericardiostomy. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To describe a paradoxical presentation of rapid cardiac tamponade from immune-mediated pericarditis occurring after clinical and laboratory control of Neisseria meningitidis bacteremia.

July 18, 2026JACC Case ReportsOpen Access

Rapidly Progressive Immune-Mediated Meningococcal Pericarditis Presenting as Cardiac Tamponade

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Key result

Emergent subxiphoid tube pericardiostomy successfully stabilizes rapid cardiac tamponade from immune-mediated meningococcal pericarditis.

Why the study?

Pericardial involvement in meningococcemia is uncommon and often immune complex mediated, with initial effusions potentially appearing insignificant but rapidly progressing to cardiac tamponade even as systemic infection markers improve.

Key Points

To describe a paradoxical presentation of rapid cardiac tamponade from immune-mediated pericarditis occurring after clinical and laboratory control of Neisseria meningitidis bacteremia.
Clinical evaluation, serial imaging, and intensive care management of a 65-year-old male presenting with septic shock (blood pressure 79/56 mm Hg, temperature 39.1 °C) and Neisseria meningitidis bacteremia.
Surveillance via transthoracic echocardiography to assess pericardial fluid dynamics, followed by emergent subxiphoid tube pericardiostomy for hemodynamic collapse.
Initial echocardiography demonstrated a small, nonhemodynamically significant circumferential pericardial effusion that progressed rapidly to a large effusion with cardiac tamponade despite improving infection markers.
Emergent subxiphoid tube pericardiostomy successfully relieved obstructive shock despite vasopressor dependence, followed by management with amiodarone for atrial fibrillation, colchicine therapy, and discharge home in stable condition.

Study Design

Type

Case Report (n=1)

Structured PICO

Population

A 65-year-old man with septic shock secondary to Neisseria meningitidis bacteremia who developed rapidly progressive immune-mediated pericarditis and cardiac tamponade.

Intervention

Emergent subxiphoid tube pericardiostomy under local anesthesia, followed by pericardial drain placement, bilateral tube thoracostomies, and medical management including antibiotics, vasopressors, amiodarone, and colchicine.

This case highlights that immune-mediated meningococcal pericarditis can rapidly progress to life-threatening cardiac tamponade even as systemic infection markers improve, necessitating serial echocardiography and prompt surgical drainage.

Discussion

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Implication

Serial echocardiography may detect tamponade in meningococcal pericarditis despite improving markers; this case leaves open optimal monitoring strategies.

Cite This Study

Pagotan et al. (2026) conducted a case report in Meningococcal pericarditis with cardiac tamponade (n=1). Emergent subxiphoid tube pericardiostomy was evaluated on Hemodynamic stabilization. Emergent subxiphoid tube pericardiostomy successfully stabilized a 65-year-old man who developed rapid cardiac tamponade from immune-mediated meningococcal pericarditis despite improving infection markers.

synapsesocial.com/papers/6a5b38f68167787360d24e2e https://doi.org/10.1016/j.jaccas.2026.109105

Topics

Pericardial disease

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Implication

Serial echocardiography may detect tamponade in meningococcal pericarditis despite improving markers; this case leaves open optimal monitoring strategies.

Rapidly Progressive Immune-Mediated Meningococcal Pericarditis Presenting as Cardiac Tamponade

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Topics

Rapidly Progressive Immune-Mediated Meningococcal Pericarditis Presenting as Cardiac Tamponade

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Topics

Also Consider